@nateb @BradRubenstein @briankrebs Hidden SSIDs aren't broadcast, but if there's traffic on the network then the BSSID of the network is still detectable, even if the human-readable SSID isn't known. Apple are going to be more interested in the BSSID than the SSID for their purposes because it's more unique and random than the names humans come up with. Your BSSID also can't be changed, since it's just the access point's hardware MAC address.